Conectando
Josui Kaikan
如水会館
- Max capacity
- 400 people (Star Hall (2F), Standing)
- Largest room
- 462㎡
- Address
- Tokyo 101-0003 2-1-1 Hitotsubashi, Chiyoda-ku
- Nearest stations
- Tokyo Metro Tozai Line Takebashi Station Exit 1b: 4 min walk, Exit 3b: 5 min walk / Tokyo Metro Hanzomon Line, Toei Mita Line and Toei Shinjuku Line Jimbocho Station Exits A8 and A9: 4 min walk
- Opening hours
- Conference Room: 10:00-21:00 (open year-round except Dec 29 to Jan 3)
- Official website
- kaikan.co.jp Guide for organizers
Rooms and capacity
| Room | Area (㎡) | Classroom | Hollow square | Standing | Banquet |
|---|---|---|---|---|---|
| Star Hall (2F)Seated 100-240 / standing 150-400. Room fee is 88,000 yen for banquets and 176,000 yen for meetings and seminars (2 hours, tax included, service charge not included). | 462 | — | — | 400 | 240 |
| Orion Room (2F)Seated 60-100 / standing 80-150. Room fee is 44,000 yen for banquets and 88,000 yen for meetings and seminars (2 hours, tax included, service charge not included). | 214 | — | — | 150 | 100 |
| Pegasus (2F)Seated 50-90 / standing 70-120. Room fee is 40,700 yen for banquets and 81,400 yen for meetings and seminars (2 hours, tax included, service charge not included). | 181 | — | — | 120 | 90 |
| Shofu-no-Ma (3F)Seated 60-100 / standing 80-150. Room fee is 44,000 yen for banquets and 88,000 yen for meetings and seminars (2 hours, tax included, service charge not included). | 214 | — | — | 150 | 100 |
| Fuji-no-Ma (3F)Seated 60-80 / standing 70-120. Room fee is 40,700 yen for banquets and 81,400 yen for meetings and seminars (2 hours, tax included, service charge not included). | 181 | — | — | 120 | 80 |
| Sakura-no-Ma (3F)Seated 20-40 / standing 20-50. Room fee is 27,500 yen for banquets and 55,000 yen for meetings and seminars (2 hours, tax included, service charge not included). | 99 | — | — | 50 | 40 |
| Keyaki-no-Ma (3F)Seated 20-30 / standing 20-40. Room fee is 19,800 yen for banquets and 39,600 yen for meetings and seminars (2 hours, tax included, service charge not included). | 82 | — | — | 40 | 30 |
| Ume, Take, Kiku, Ran (2F)Seated 8-12. Room fee is 6,600 yen for banquets and 13,200 yen for meetings and seminars (2 hours, tax included, service charge not included). | 33 | — | — | — | 12 |
| Conference Room (1F)Classroom layout 50 seats, hollow-square layout 28 seats. Fee is 49,500 yen for 2 hours (overtime 12,100 yen per 30 minutes). LCD video projector 16,500 yen, 120-inch screen 5,500 yen, fiber-optic internet connection 16,500 yen (all tax included). Bookings are accepted from 1 year before the date of use (9:00-18:00). | — | 50 | 28 | — | — |
Source: kaikan.co.jp (Capacities are the maximums the venue states; they change with layout and equipment.)
Official documents (floor plans, price lists, terms)
- Banquet Room Usage Regulations (in effect from January 1, 2016)PDF
- Star Hall Sample LayoutPDF
- Orion Room Sample LayoutPDF
- Pegasus Sample LayoutPDF
- Shofu-no-Ma Sample LayoutPDF
- Fuji-no-Ma Sample LayoutPDF
- Sakura-no-Ma Sample LayoutPDF
- Keyaki-no-Ma Sample LayoutPDF
- Access Map for Printing (May 2018 edition)PDF
Operating rules (from the official website and documents)
Catering and outside food/drink
The Conference Room asks that food and drink not be brought in. Boxed lunches start at 3,850 yen, and coffee or tea during a meeting is 605 yen each (tax included, plus a separate service charge). For banquet room decoration, flowers, sound, lighting, entertainment, music, receptionists and gifts, vendors designated by Josui Kaikan must be used (other vendors require Josui Kaikan's prior approval). Off-site catering is available from 30 people, with reservations up to 10 days in advance.
Source: kaikan.co.jpRestaurants in the venue or building
The building has Restaurant Jupiter and Cafe & Pub Mercury on 1F, the Japanese restaurant Kyohantei on 3F, and Hitotsubashi Club (restaurant and bar lounge) on 14F. The banquet rooms offer party plans from 30 people, with 2 hours of free drinks, as standing or seated buffets.
Source: kaikan.co.jpOperating rules are limited to what each venue’s official website and official PDFs state. Items that are not listed are ones we could not find on the official website. Always confirm with the venue before you book. (Checked: Nov 7, 2026)
Nearby shops for when something goes wrong on the day
Print shops (large volume, large format)
For posters, panels and large print runs.
- 6 min walk Accea Jimbocho Open 24 hours (café use 22:00 to 6:00 the next day is for ID-verified members only)
- 8 min walk Kinko's Jimbocho Weekdays 8:00-20:00 / Closed Sat, Sun & holidays
Convenience stores (multi-copy machines)
Small print runs, drinks, tape, batteries and similar.
- 3 min walk FamilyMart Palaceside Building 7:00-23:00
- 3 min walk FamilyMart Terrace Square 7:00-23:00
- 4 min walk 7-Eleven Kanda Nishikicho Chiyoda-dori 7:00-23:00 (Mon-Sun & holidays)
100-yen shops
Masking tape, scissors, badge holders, extension cords, plastic bags and similar.
- 6 min walk DAISO Kanda-Jimbocho Suzuran-dori 10:00-21:00
- 7 min walk Can Do Jimbocho Daily 10:00-21:00
Don Quijote
For late-night or day-of-event shopping.
- 20 min walk Don Quijote Akihabara Open 24 hours
- 20 min walk Don Quijote Korakuen Open 24 hours
If you run out of drinks (same-day delivery)
This venue is in Kakuyasu's same-day delivery area. Kakuyasu (Nandemo Sake-ya Kakuyasu) “delivery from store” covers all 23 wards of Tokyo and all of Nishi Ward in Yokohama for same-day delivery (free shipping). Delivery slots are hourly from 10:00 to 22:00 (order cutoff 30 minutes before; some stores also offer the 9:00 slot). Besides alcohol, they also carry soft drinks such as tea.
Source: Kakuyasu: store delivery areas (Japanese) / Kakuyasu: delivery dates and times (Japanese)
Walking minutes are the straight-line distance to the venue divided by 80 m per minute, as a rough guide (the actual walking route is longer). Shop names and opening hours were checked on each company's official store page (as of Nov 7, 2026).
Nearby hotels
Places to stay for staff who arrive the day before or travel from far away. These are the hotels around Josui Kaikan featured on BizinTokyo, our guide for attendees.
- KKR Hotel Tokyo About 3 min walk to Josui Kaikan
- Sakura Hotel Jimbocho About 5 min walk to Josui Kaikan
- Sotetsu Fresa Inn Ochanomizu Jimbocho About 5 min walk to Josui Kaikan
- Book Hotel Jimbocho About 6 min walk to Josui Kaikan
- APA Hotel Kanda-Jimbocho-Ekihigashi About 6 min walk to Josui Kaikan
- Hotel Villa Fontaine Tokyo-Jimbocho About 7 min walk to Josui Kaikan
* Hotel links are Expedia affiliate links. Conectando earns a referral fee when a booking is made.